The Symmetry range of high efficient, semi flexible, waterproof mono-crystalline solar panels is ideal for permanent outdoor use to provide free electricity for charging 12V batteries to power various applications, such as in a motor-homes, caravans, campervans, boats, or for solar lighting systems, off-grid / back up solar power systems. The flexible design makes them suitable for curved roof applications and surfaces where bonding is preferable or though the panel eyelets using bolts or screws. There is a waterproof junction box on the front of panel and is the panels fitted with a blocking diode to prevent reverse current from the battery to the solar panel. The panels are fitted with 2 x 0.9m of cable fitted with MC4 compatible connectors and are specially designed for solar panels to carry high currents with negligible power loss.